| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst that can effectively remove sulfur-containing compounds, which are compounds causing malodor in living environments, by coating a zeolite, to which silver ion is joined by an ion exchange reaction, with a metal oxide catalyst, which can convert mercaptanes in the air into alkyl disulfide. SOLUTION: To produce the catalyst to be used for deodorization of air containing sulfur-containing compounds such as mercaptanes, methyl sulfide, etc., zeolite to which silver ion is joined by an ion exchange reaction (hereafter called as silver ion-exchanged zeolite) is so treated as to be coated with a coating of a metal oxide catalyst which can convert mercaptanes in air into alkyl disulfide. Alternatively, silver ion-exchanged zeolite is deposited on a honeycomb structure body and the surface is coated with a metal oxide catalyst which can convert mercaptanes in air into alkyl disulfide to produced an deodorization element. Manganese oxide, iron oxide, cobalt oxide, etc., in fine powder state with high specific surface area are preferably used as the metal oxide catalyst. |
